Numbers speak by themselves: Klip surpassed 1 million downloads in just over 100 days. That simple. Even if mobile video and video sharing are the rage, it’s still spectacular.

Power Engineering = Ease of Use : A rather late comer to the app (no excuse when the founder is an old friend, Alain Rossmann), I must admit that I am blown away: it’s the highest quality video streaming around for mobile device with a fantastic recommendation engine suggesting videos, users and topics to follow; it includes SMS and iMessage to invite and tag friends. Klip stores my videos in the cloud and provides unlimited uploads for free. To make it short, Klip is the state-of-the art choice to create, store, and share videos on an Iphone. Clearly super high-tech brains can make gorgeous and easy-to-use apps.

Now Privacy = Circle Management: Klip just released its 2.2 version that adds one of the best implementation of privacy I have seen on any mobile app: Circle-based privacy.

The norm up to now for video app privacy has been very basic: the video is locked and you are the only one who can see it — or the way to open up is to an undiscoverable url that you can email to friends. Kind of lame and certainly not scalable.

Klip changes all of this. You control privacy by adding or removing followers from your personal circle. Video uploads can be marked as visible to everybody or to just to your personal circle and circle videos are automatically restricted to the members of your circle. It is private sharing the way it should be: a breeze to use while still providing tight control. I love the fact that comments added to a private video are only visible to members of the circle and that only the owner of a private video can share it with others on social networks.

So when you look at your feed, popular videos, or latest videos you automatically see in real time the public videos and the circle-only videos if you belong to that circle. Each person has a personalized view of popular, latest, etc. You have a view that depends on the circles you belong too, all in real time. All the video metadata (comments, likes) are automatically restricted to the members of the circle. Also, and this too is really cool: If you add somebody to your circle all your prior circle videos become instantly available to him/her (and if you remove them, they can’t see what they used to see…).

Klip creates magic by combining brilliant real-time cloud computing with a gorgeous, fluid Iphone interface. So don’t wait, get the free app here and tell me what you think.